CN101480799A - Internal knife unit of rotating shaver - Google Patents
Internal knife unit of rotating shaver Download PDFInfo
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- CN101480799A CN101480799A CNA2008100631573A CN200810063157A CN101480799A CN 101480799 A CN101480799 A CN 101480799A CN A2008100631573 A CNA2008100631573 A CN A2008100631573A CN 200810063157 A CN200810063157 A CN 200810063157A CN 101480799 A CN101480799 A CN 101480799A
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- blade
- outer shroud
- cutting ring
- ring sheet
- blades
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Abstract
The invention relates to an interior cutter unit for a rotary type shaver, which belongs to personal-care appliances and at least comprises two groups of cutters which are distributed on the circumferences with different radii with the rotation axis as the center. The interior cutter unit is characterized in that the circumferences with different radii are respectively formed at the edges of mutually-independent metal annular sheet elements with different radii; the sheet elements are assembled to a same cutter holder basically in circular shape according to the ascending sequence from top down. The invention can keep good and stable shaving performance of the rotary type shaver through avoiding the generation of cutting clearance between the interior cutter unit and an exterior cutter unit to create bad influence on the shaving performance of the rotary type shaver, so the bad phenomena of beard pulling, tingling and the like can be avoided.
Description
Technical field
The invention belongs to appliance for personal care, is the internal knife unit that is used for rotary shaver, relates to the internal knife unit that comprises a plurality of annular cutter blades that are provided with different radiuses from the rotating shaft of described unit especially.
Background technology
In rotary shaver, known have such internal knife unit, its blade is with mounted thereto and be provided with outer cutter unit that hair enters the hole and match and form the razor assembly of rotary shaver, in use, internal knife unit rotates along the bottom of outer cutter unit, thereby cuts off any hair that hair enters the hole that enters.Wherein, in a kind of rotary shaver inner cutter of exemplary embodiment (referring to Fig. 4), the arm of this known internal knife unit 10A and center substrate are to be formed by single flat member integral cutting, the shape of its each arm is identical and radially extend from center substrate, the end of each arm forms the U-shaped part, it upwards bends and reverses above 90 °, make the foot of all U-shaped part ends form the cutter 11A/12A sheet (referring to Fig. 4) on two donuts that two groups of cutter are distributed in different-diameter, these two groups of blades match with two donuts of external cutter respectively, form a kind of dicyclo cutter, in the donut of the external cutter of this dicyclo cutter, offer slit shape on the outer toroid and enter the palpus hole, offer hole-shaped on the interior annulus and enter the palpus hole.
The advantage of this known internal knife unit is, because arm and cutter can be formed by single flaky material cutting and bending, does not need to handle and assemble a large amount of parts, is convenient to make, and cost reduces.And, owing to can quite accurately finish cutting and bending, thus allow with the hi-Fix cutter.
The shortcoming of this known internal knife unit is, in the use, can produce between internal knife unit and outer cutter unit and cut off the gap, this gap has hindered the performance that shaves of cutting off action normally between inner cutter and the external cutter and influencing rotary shaver.This be because, in the shaver process, when cutting off beard, be applied at beard under the influence of the power on this internal knife unit, the blade of inner cutter can be advanced to more vertical position (in above-mentioned dicyclo cutter moment momently, because the tangential velocity of interior cutting ring sheet is lower than outer shroud blade, cut-out power is less, beard enter advancing of external cutter must the hole after, inner cutter blades is often easier temporarily to be advanced to more vertical position, promptly level off to the position vertical) with center substrate, because such distortion, upwards lift on the top of this blade, thereby make this blade become higher than blade on every side, so cause the lifting of outer cutter unit and tilt near this part hoist point, this will cause externally knife unit and produce the gap between some inner cutter blades at least.Because the enlarge-effect at angle of inclination, this gap is advanced and must will be become bigger for the outer toroid in hole for promptly offering slit shape near the external cutter periphery, maximum to the performance contribution of shaving usually because have higher tangent line cut-off velocity at this position, the most outstanding to the Effect on Performance performance of shaving, so worry is made us in the generation in this gap more.In actual shaving, find that this gap often causes the sharpness of rotary shaver to descend, phenomenons such as plucking, shouting pain appear in the user when shaving operation.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that the sharpness that cuts off the gap and cause rotary shaver that produces between internal knife unit and outer cutter unit that overcomes the prior art existence descends, the defective that occurs phenomenons such as plucking, shouting pain when the user shaves, a kind of internal knife unit of rotary shaver is provided, make shaver in use, can avoid between internal knife unit and outer cutter unit producing and cut off the gap rotary shaver performance that shaves is caused harmful effect.For this reason, the present invention is by the following technical solutions:
The internal knife unit of rotary shaver, at least comprising two groups, to be distributed in its rotation be a plurality of blades on the circumference of different radii at center, it is characterized in that: the circumference of described different radii is respectively formed at the edge of the metal ring flat member of different radii independent of each other, and this flat member installs on the same rounded substantially knife rest according to big end down der group.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature: effect has the flexible member that makes this flat member float at least one flat member.
The present invention compares with known rotary shaver inner cutter, and its major advantage has:
1, cuts off the gap to the rotary shaver adverse effect that performance causes that shaves by avoiding between internal knife unit and outer cutter unit producing, can make the property retention good stable that shaves of rotary shaver, avoid the generation of bad phenomenon such as plucking, shouting pain.
2, easily every group of blade processed separately, and make every group of blade keep different vertical degree, the blade of ring is more straight than the blade of outer shroud in allowing, like this, in both can having avoided preferably cutting ring tool blade because of advance must the external cutter that causes of promotion transient rises, can ensure preferably that again the blade to the maximum outer shroud of performance contribution that shaves can have good sharpness, thus help shaver not only efficiently, but also cosily be used.
3, because the blade of many groups annular distribution of inner cutter can be processed separately, and then be assembled on the molded knife rest by methods such as welding, so the manufacturing of whole interior cutter is simpler, cost more reduces.
4, the structure owing to the whole interior cutter is made of metal system annular cutter blade and plastics system pedestal knife rest, thereby weight is lighter, the electric energy loss that can save drive motors when the shaver operation is used, and the running noises of reduction shaver.
Description of drawings
Fig. 1: rotary shaver schematic perspective view of the present invention, this shaver are provided with three razor groups with dicyclo external cutter.
Fig. 2 a: the stereogram of rotary shaver internal knife unit of the present invention, cutting ring sheet is identical with the angle of wedge of outer shroud blade in it.
Fig. 2 b: the stereogram of rotary shaver internal knife unit of the present invention, angle of wedge of cutting ring sheet is bigger than the angle of wedge of outer shroud blade in it.
Fig. 3 a: the STRUCTURE DECOMPOSITION figure of internal knife unit shown in Figure 2 wherein is not provided with spring leaf on the plastics knife rest.
Fig. 3 b: the STRUCTURE DECOMPOSITION figure of internal knife unit shown in Figure 2, wherein the plastics knife rest is provided with the spring leaf that is circular layout.
Fig. 4: the structural perspective of prior art rotary shaver inner cutter.
The specific embodiment
Fig. 1 shows rotary shaver 1 according to an exemplary embodiment of the present invention, it comprises fuselage 2 and head 3, head 3 is provided with three razor groups 4, this razor group 4 by outer shroud crack, the Crossed Circle external cutter 5 of interior ring perforate formed with the inner cutter 10 (referring to Fig. 2, Fig. 3) of cutting off beard with can relative its rotating.
Fig. 2 a, Fig. 2 b show the structural perspective of the used inner cutter 10 of this rotary shaver 1, this inner cutter 10 is the dicyclo blade type internal knife units that match with Crossed Circle external cutter 5 shown in Figure 1 and use, and Fig. 3 a, Fig. 3 b further show the STRUCTURE DECOMPOSITION figure of this internal knife unit 10.From illustrating as seen, internal knife unit 10 is made of cutting ring sheet in a group 11, one group of outer shroud blade 12, plastics knife rest 13, three spring leafs 14 and a center inserts 15, interior cutting ring sheet 11, outer shroud blade 12 be respectively along the last flat member 16 of the metal ring that circumferentially is distributed on two different radiis and the edge of following flat member 17, so whole interior knife unit 10 or be assembled on the plastics knife rest 13 by welding successively with following flat member 17 by last flat member 16 forms; Perhaps be assembled on the plastics knife rest 13 by means of center inserts 15 and form by the metal ring flat member of two different radiis.
In this manual, the angle of wedge of cutter knife is defined as folded angle between blade and the center substrate surface.
In a preferred embodiment, shown in Fig. 2 b, near the cutter knife that the rotation C of internal knife unit 10, extends, cutting ring sheet 11 promptly, relatively large locking angle 2 is set, and it is than the cutter knife of periphery, and promptly the locking angle 1 of outer shroud blade 12 is wanted big (α 2〉α 1).Like this, because the bigger locking angle 2 of interior cutting ring sheet 11 and corresponding vertically setting, in the use of shaving, when described cutter knife under the influence of cut-out power of effect on it when more vertical position is pushed into, big variation in height will can not take place in blade, and therefore, outer shroud blade 12 will can or not be difficult to promote, thereby the gap that forms between the inwall of the blade of interior cutting ring sheet 11 and outer shroud blade 12 can be ignored, so the phenomenons such as plucking, shouting pain occur of can avoiding shaving.
In addition, in a preferred embodiment, shown in Fig. 3 b,, spring leaf 14 is set as flexible member by the mode of being circular layout installing on the plastics knife rest 13 on the flat member 16 corresponding annular regions.When after on the plastics knife rest 13 flat member 16 being installed, 18 pairs of the through holes that spring leaf 14 will pass down on the flat member 17 are gone up the effect that flat member 16 plays resiliency supported.Shave when using, if cutting ring sheet 11 is pushed into to more vertical position under the influence of the cut-out power that is applied to it in described, the elastic force that interior cutting ring sheet 11 will overcome spring leaf 14 is further pressed to plastics knife rest 13, thereby the elevated height at cutting ring sheet 11 tops greatly is eased in making, and then reduce the formation in gap between cutting ring sheet 11, outer shroud blade 12 and the outer cutter unit in being raised, stoping of outer shroud blade 12 effectively, so just, phenomenons such as plucking, shouting pain take place in the time of can preventing to shave effectively, improve the comfort level that shaves.
In addition, can also realize in the following manner:
Described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and all along circumferentially uniform, interior cutting ring sheet and outer shroud blade are arranged in a linear at the radial direction from described rotation for interior cutting ring sheet and outer shroud blade.
Perhaps, described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade are all along circumferentially uniform, and interior cutting ring sheet and outer shroud blade are staggered at the radial direction from described rotation and arrange.
Perhaps, described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade are along circumferentially density is spaced apart, cutting ring sheet simultaneously, outer shroud blade are identical along circumferential distribution rule, and interior cutting ring sheet, outer shroud blade are arranged in a linear at the radial direction from described rotation.
Perhaps, described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade are along circumferentially density is spaced apart, cutting ring sheet simultaneously, outer shroud blade are identical along circumferential distribution rule, and interior cutting ring sheet, outer shroud blade are staggered at the radial direction from described rotation and arrange.
Perhaps, described a plurality of blades are for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, and cutting ring sheet is different with the number of outer shroud blade in this, and interior cutting ring sheet and outer shroud blade edge are circumferentially uniform.
Perhaps, described a plurality of blades are for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, and cutting ring sheet is different with the number of outer shroud blade in this, and the circumferential density of interior cutting ring sheet and outer shroud blade edge is spaced apart.
Perhaps, described a plurality of blades are for being distributed in three groups on three circumference respectively, and every group of number of blades is identical, and the blade on each circumference is all along circumferentially uniform, and three groups of blades are arranged in a linear at the radial direction from described rotation.
Perhaps, described a plurality of blades are for being distributed in three groups on three circumference respectively, and every group of number of blades is identical, and the blade on each circumference is all along circumferentially uniform, and three groups of blades are staggered at the radial direction from the rotation described and arrange.
Perhaps, described a plurality of blade is for being distributed in three groups on three circumference respectively, it is identical and spaced apart along circumferential density that each organizes number of blades, and the distribution rule of three groups of blades is identical, and three groups of blades are arranged in a linear at the radial direction from the rotation described.
Perhaps, described a plurality of blade is for being distributed in three groups on three circumference respectively, it is identical and spaced apart along circumferential density that each organizes number of blades, and the distribution rule of three groups of blades is identical, and three groups of blades are staggered at the radial direction from the rotation described and arrange.
Perhaps, described a plurality of blades are three groups that are distributed in respectively on three circumference, every group of number of blades difference, and three groups of blades are all along circumferentially uniform.
Perhaps, described a plurality of blades are three groups that are distributed in respectively on three circumference, every group of number of blades difference, and three groups of blades are all along circumferentially density is spaced apart.
Claims (14)
1, the internal knife unit of rotary shaver, at least comprising two groups, to be distributed in its rotation (C) be a plurality of blades on the circumference of different radii at center, it is characterized in that: the circumference of described different radii is respectively formed at the edge of the metal ring flat member of different radii independent of each other, and this flat member installs on the same rounded substantially knife rest according to big end down der group.
2, the internal knife unit of rotary shaver according to claim 1 is characterized in that effect has the flexible member that makes this flat member float at least one flat member.
3, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade be all along circumferentially uniform, and interior cutting ring sheet and outer shroud blade are in that (radial direction of C) is arranged in a linear from described rotation.
4, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade be all along circumferentially uniform, and interior cutting ring sheet and outer shroud blade are in that (radial direction of C) is staggered arrangement from described rotation.
5, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade are along circumferentially density is spaced apart, cutting ring sheet simultaneously, outer shroud blade are identical along circumferential distribution rule, and interior cutting ring sheet, outer shroud blade are in that (radial direction of C) is arranged in a linear from described rotation.
6, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is identical with the number of outer shroud blade in being somebody's turn to do, and interior cutting ring sheet and outer shroud blade are along circumferentially density is spaced apart, cutting ring sheet simultaneously, outer shroud blade are identical along circumferential distribution rule, and interior cutting ring sheet, outer shroud blade are in that (radial direction of C) is staggered and arranges from described rotation.
7, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, should in cutting ring sheet different with the number of outer shroud blade, and interior cutting ring sheet and outer shroud blade edge is circumferentially uniform.
8, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in interior cutting ring sheet and the outer shroud blade on two circumference respectively, the cutting ring sheet is different with the number of outer shroud blade in being somebody's turn to do, and the circumferential density of interior cutting ring sheet and outer shroud blade edge is spaced apart.
9, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in three groups on three circumference respectively, every group of number of blades is identical, and the blade on each circumference is all along circumferentially uniform, and three groups of blades are in that (radial direction of C) is arranged in a linear from described rotation.
10, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in three groups on three circumference respectively, every group of number of blades is identical, and the blade on each circumference is all along circumferentially uniform, and three groups of blades are staggered at the radial direction from rotation (C) described and arrange.
11, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in three groups on three circumference respectively, it is identical and spaced apart along circumferential density that each organizes number of blades, the distribution rule of three groups of blades is identical, and three groups of blades are arranged in a linear at the radial direction from rotation (C) described.
12, the internal knife unit of rotary shaver according to claim 1 and 2, it is characterized in that described a plurality of blade is for being distributed in three groups on three circumference respectively, it is identical and spaced apart along circumferential density that each organizes number of blades, the distribution rule of three groups of blades is identical, and three groups of blades are staggered at the radial direction from rotation (C) described and arrange.
13, the internal knife unit of rotary shaver according to claim 1 and 2 is characterized in that described a plurality of blade is three groups that are distributed in respectively on three circumference, every group of number of blades difference, and three groups of blades are all along circumferentially uniform.
14, the internal knife unit of rotary shaver according to claim 1 and 2 is characterized in that described a plurality of blade is three groups that are distributed in respectively on three circumference, every group of number of blades difference, and three groups of blades are all along circumferentially density is spaced apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100631573A CN101480799A (en) | 2008-07-15 | 2008-07-15 | Internal knife unit of rotating shaver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100631573A CN101480799A (en) | 2008-07-15 | 2008-07-15 | Internal knife unit of rotating shaver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101480799A true CN101480799A (en) | 2009-07-15 |
Family
ID=40878170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100631573A Pending CN101480799A (en) | 2008-07-15 | 2008-07-15 | Internal knife unit of rotating shaver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101480799A (en) |
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2008
- 2008-07-15 CN CNA2008100631573A patent/CN101480799A/en active Pending
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Open date: 20090715 |